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Finding the Fourth Proportional to 890,999.55, 1,336,499.33 and 890,999.55

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Solution

The fourth proportional to 890,999.55, 1,336,499.33 and 890,999.55 is: 1,336,499.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,999.55 : 1,336,499.33 = 890,999.55 : x
  2. Step 2: Convert to fraction form
    890,999.55/1,336,499.33 = 890,999.55/x
  3. Step 3: Cross multiply
    890,999.55x = 1,336,499.33 × 890,999.55
  4. Step 4: Simplify right side
    890,999.55x = 1,190,820,297,150.30
  5. Step 5: Solve for x
    x = 1,190,820,297,150.30/890,999.55
  6. Step 6: Final answer
    x = 1,336,499.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.